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Cisco Bug: CSCvs01943 - "login authentication VTY_authen" is missing on "line vty 0 4" only

Last Modified

Aug 25, 2020

Products (17)

  • Cisco IOS
  • Cisco 4221 Integrated Services Router
  • Cisco ASR 1000 Series IOS XE SD-WAN
  • Cisco 4331 Integrated Services Router
  • Cisco 4321 Integrated Services Router
  • Cisco 4431 Integrated Services Router
  • Cisco ASR 1002-X Router
  • Cisco ASR 1001-X Router
  • Cisco 4451-X Integrated Services Router
  • Cisco 4351 Integrated Services Router
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Known Affected Releases

16.9.1 16.9.2

Description (partial)

Provision switch via DNAC that "login authentication VTY_authen" is only missed on line vty 0 4, not line vty 5 15. 
Apply the same config via console, the line is still missing. 

The user can still use tacacs credential to login if the switch is not reloaded. But user can not login in anymore after reload.

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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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